Paper Info
Title
Extended event-driven modeling of a ΣΔ-fractional-N PLL including non-ideal effects
Abstract
In modern systems PLLs are widely used e.g. for frequency synthesis. Since this feedback control system exhibits a mixed-signal nature, it is challenging to use general theory to characterize its dynamic behavior. Additionally, due to the low and high frequency parts, simulations utilizing either a behavioral or transistor-level model are not computer resource efficient. To overcome this the modular and enhanced Event-Driven Model can be used. Since the existing Event-Driven Model is neither applicable to take different divider delays into account nor to consider a ΣΔ-Modulator, this work focuses on the extension of this modeling approach considering a ΣΔ-Fractional-N PLL with non-ideal effects like dead zone, leakage current and different divider delays. This extended model is validated with transistor-level simulations and is used to explore the impact of non-ideal effects on the loop characteristics.
Year
DOI
Venue
2014
10.1109/ICECS.2014.7049931
Electronics, Circuits and Systems
Keywords
Field
DocType
phase locked loops,sigma-delta modulation,ΣΔ-fractional-N PLL,ΣΔ-modulator,dead zone,divider delays,extended event-driven modeling,feedback control system,frequency synthesis,leakage current,mixed-signal nature,transistor-level model,transistor-level simulations
Dead zone,Phase-locked loop,Frequency divider,Frequency synthesis,Leakage (electronics),Computer science,Control theory,Electronic engineering,Control engineering,Control system,Modular design
Conference
Citations 
PageRank 
References 
0
0.34
4
Authors
3
Name
Order
Citations
PageRank
Christian Hangmann132.87
Christian Hedayat221.42
Ulrich Hilleringmann33512.63